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/*====================================================================*
 *
 *   Copyright (c) 2013 Qualcomm Atheros, Inc.
 *
 *   All rights reserved.
 *
 *   Redistribution and use in source and binary forms, with or 
 *   without modification, are permitted (subject to the limitations 
 *   in the disclaimer below) provided that the following conditions 
 *   are met:
 *
 *   * Redistributions of source code must retain the above copyright 
 *     notice, this list of conditions and the following disclaimer.
 *
 *   * Redistributions in binary form must reproduce the above 
 *     copyright notice, this list of conditions and the following 
 *     disclaimer in the documentation and/or other materials 
 *     provided with the distribution.
 *
 *   * Neither the name of Qualcomm Atheros nor the names of 
 *     its contributors may be used to endorse or promote products 
 *     derived from this software without specific prior written 
 *     permission.
 *
 *   NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE 
 *   GRANTED BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE 
 *   COPYRIGHT HOLDERS AND CONTRIBUTORS &quot;AS IS&quot; AND ANY EXPRESS OR 
 *   IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
 *   WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 
 *   PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER 
 *   OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
 *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 
 *   NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
 *   LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
 *   HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
 *   CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 
 *   OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 
 *   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.  
 *
 *--------------------------------------------------------------------*/

/*====================================================================*
 *
 *   edsu.c - Qualcomm Atheros Ethernet II Data Send Utility
 *
 *   send one or more files over Ethernet using IEEE 802.2 Ethernet
 *   Frames;
 *
 *   this program can be used as a data source when testing AR6405
 *   UART applications; use this program to send files and program
 *   edru to read and display or save them at the other end;
 *
 *
 *   Contributor(s):
 *      Charles Maier &lt;cmaier@qca.qualcomm.com&gt;
 *
 *--------------------------------------------------------------------*/

/*====================================================================*
 *   system header files;
 *--------------------------------------------------------------------*/

#include &lt;stdlib.h&gt;
#include &lt;limits.h&gt;
#include &lt;memory.h&gt;
#include &lt;signal.h&gt;
#include &lt;unistd.h&gt;

/*====================================================================*
 *   custom header files;
 *--------------------------------------------------------------------*/

#include &quot;../tools/getoptv.h&quot;
#include &quot;../tools/putoptv.h&quot;
#include &quot;../tools/memory.h&quot;
#include &quot;../tools/number.h&quot;
#include &quot;../tools/error.h&quot;
#include &quot;../tools/files.h&quot;
#include &quot;../tools/flags.h&quot;
#include &quot;../ether/ether.h&quot;
#include &quot;../ether/channel.h&quot;

/*====================================================================*
 *   custom source files;
 *--------------------------------------------------------------------*/

#ifndef MAKEFILE
#include &quot;../tools/getoptv.c&quot;
#include &quot;../tools/putoptv.c&quot;
#include &quot;../tools/version.c&quot;
#include &quot;../tools/efreopen.c&quot;
#include &quot;../tools/basespec.c&quot;
#include &quot;../tools/uintspec.c&quot;
#include &quot;../tools/todigit.c&quot;
#include &quot;../tools/hexdump.c&quot;
#include &quot;../tools/hexencode.c&quot;
#include &quot;../tools/error.c&quot;
#endif

#ifndef MAKEFILE
#include &quot;../ether/channel.c&quot;
#include &quot;../ether/openchannel.c&quot;
#include &quot;../ether/closechannel.c&quot;
#include &quot;../ether/readpacket.c&quot;
#include &quot;../ether/sendpacket.c&quot;
#endif

/*====================================================================*
 *   program constants;
 *--------------------------------------------------------------------*/

#define EDSU_INTERFACE &quot;PLC&quot;
#define EDSU_ETHERTYPE ETH_P_802_2
#define EDSU_PAUSE 0

/*====================================================================*
 *
 *   signed function (struct channel * channel, unsigned pause, signed fd);
 *
 *   read a file and transmit it over network as a stream of Ethernet
 *   frames; pause between frames to prevent over-loading the remote
 *   host;
 *
 *
 *--------------------------------------------------------------------*/

signed function (struct channel * channel, unsigned pause, signed fd)

{
	struct ethernet_frame frame;
	signed length = sizeof (frame.frame_data);
	memcpy (frame.frame_dhost, channel-&gt;peer, sizeof (frame.frame_dhost));
	memcpy (frame.frame_shost, channel-&gt;host, sizeof (frame.frame_shost));
	while ((length = read (fd, frame.frame_data, sizeof (frame.frame_data))) &gt; 0)
	{
		frame.frame_type = htons (length);
		if (length &lt; ETHERMIN)
		{
			length = ETHERMIN;
		}
		length += ETHER_HDR_LEN;
		if (sendpacket (channel, &amp;frame, length) &lt; 0)
		{
			error (1, errno, CHANNEL_CANTSEND);
		}
		sleep (pause);
	}
	return (0);
}

/*====================================================================*
 *
 *   int main (int argc, char const * argv []);
 *
 *
 *
 *--------------------------------------------------------------------*/

int main (int argc, char const * argv [])

{
	extern struct channel channel;
	static char const * optv [] =
	{
		&quot;e:d:i:p:qv&quot;,
		&quot;file [file] [...]&quot;,
		&quot;Qualcomm Atheros Ethernet II Data Send Utility&quot;,
		&quot;e x\tethertype is (x) [&quot; LITERAL (EDSU_ETHERTYPE) &quot;]&quot;,
		&quot;d x\tdestination address is (x) [00:B0:52:00:00:01]&quot;,

#if defined (WINPCAP) || defined (LIBPCAP)

		&quot;i n\thost interface is (n) [&quot; LITERAL (CHANNEL_ETHNUMBER) &quot;]&quot;,

#else

		&quot;i s\thost interface is (s) [&quot; LITERAL (CHANNEL_ETHDEVICE) &quot;]&quot;,

#endif

		&quot;p n\tpause (n) seconds between frames [&quot; LITERAL (EDSU_PAUSE) &quot;]&quot;,
		&quot;q\tquiet mode&quot;,
		&quot;v\tverbose mode&quot;,
		(char const *)(0)
	};
	unsigned pause = EDSU_PAUSE;
	signed c;
	if (getenv (EDSU_INTERFACE))
	{

#if defined (WINPCAP) || defined (LIBPCAP)

		channel.ifindex = atoi (getenv (EDSU_INTERFACE));

#else

		channel.ifname = strdup (getenv (EDSU_INTERFACE));

#endif

	}
	channel.type = EDSU_ETHERTYPE;
	while ((c = getoptv (argc, argv, optv)) != -1)
	{
		switch (c)
		{
		case 'e':
			channel.type = (uint16_t)(basespec (optarg, 16, sizeof (channel.type)));
			break;
		case 'd':
			if (!hexencode (channel.peer, sizeof (channel.peer), optarg))
			{
				error (1, errno, &quot;%s&quot;, optarg);
			}
			break;
		case 'i':

#if defined (WINPCAP) || defined (LIBPCAP)

			channel.ifindex = atoi (optarg);

#else

			channel.ifname = optarg;

#endif

			break;
		case 'p':
			pause = (unsigned)(uintspec (optarg, 0, UCHAR_MAX));
			break;
		case 'q':
			_setbits (channel.flags, CHANNEL_SILENCE);
			break;
		case 'v':
			_setbits (channel.flags, CHANNEL_VERBOSE);
			break;
		default:
			break;
		}
	}
	argc -= optind;
	argv += optind;
	openchannel (&amp;channel);
	if (!argc)
	{
		function (&amp;channel, pause, STDIN_FILENO);
	}
	while ((argc) &amp;&amp; (* argv))
	{
		if (efreopen (* argv, &quot;rb&quot;, stdin))
		{
			function (&amp;channel, pause, fileno (stdin));
		}
		argc--;
		argv++;
	}
	closechannel (&amp;channel);
	exit (0);
}


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